SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 SH

2026 SH

2026 SH belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.079 AU it takes 1.12 yr to circle the Sun.

Apollo Observations: 36
Orbital Period · P
1.12 yr
v(q)
31.1 km/s
v(Q)
26.5 km/s
Diameter · ≈
0.03 km
TJ
5.64
Eccentricity · e
0.0801

Orbit and dynamics

The path is an ellipse reaching 0.992 AU from the Sun at perihelion and 1.165 AU at aphelion, a radial span of 0.173 AU.

Applying Kepler's third law to a = 1.079 AU gives an orbital period of 1.12 yr, or about 409 days.

With e = 0.08, the orbit is close to circular.

A steep inclination of 25.64° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 31.1 km/s at perihelion and falls to 26.5 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 25.73 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 36 observations and has a weighted RMS residual of 0.4656 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

About these computed values

Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Orbital Parameters

Semi-Major Axis
1.079 AU
Eccentricity
0.0801
Perihelion
0.992 AU
Aphelion
1.165428 AU
Inclination
25.64°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
217.15°

Orbit diagram

The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.

3D orbit (interactive)

Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.

Close approaches

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2027-Mar-13 19:34 0.155360 AU
23241585 km
13.64 km/s
2035-Sep-15 00:40 0.084741 AU
12677144 km
15.01 km/s
2036-Mar-16 20:12 0.127081 AU
19010992 km
12.96 km/s
2064-Mar-14 11:24 0.119303 AU
17847491 km
13.20 km/s
2073-Mar-19 15:41 0.093109 AU
13928851 km
13.12 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
25.73

Orbit Quality

RMS
0.46561
Condition
7
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Keep exploring

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